private void BtnDelete_OnClick(object sender, RoutedEventArgs e) { var res = MessageBox.Show("Dou you really want to delete the ebook?", "Delete Ebook", MessageBoxButtons.YesNo); if (res != System.Windows.Forms.DialogResult.Yes) { return; } Ebook selectedEbook = (Ebook)ebookListView.SelectedItem; var service = new EbookService(); service.DeleteEbook(selectedEbook.Id); }